Projection apparatus.



E BAUSGH, H. BAUSGH, G. HOMMEL, W. L. PATTERSON 8: E. SAILER. PROJECTION APPARATUS.

APPLIGATION FILED 0013, 1906 1,059,969. I Patented Apr.29,1913.

.7 4 SHEETS-SHEET 2.

E. BAUSGH, H. BAUSGH, G. HOMMEL, W. L. PATTERSON 8; E. SAILER.

PROJECTION APPARATUS. V APPLICATION FILED 00T.3, 1906.

PatentedApr. 29, 1913.

4 SHEETS-SHEET 3.

wit-n mow E. BAUSUH, H. BAUSCH, G. HOMMEL, W. L. PATTERSON 82; E. SAILER.

IIBROJECTION APPARATUS. APPLICATION FILED 0017.3 1906.

1,959,969 Patented Apr; 29, 1-913.

4 SHEETS-SHBET 4- EDWARD BAUSCH,

HENRY meson. enonon ra n-n snares en rant, ron.

EOMMEL, WILLIAM L. rA'r'rnnsoN, ans

EBN'ST'SAILER, OF ROCHESTER, NEW YORK, ASSIGNORS, BY MESNE ASSIGNMElQ'TtE, TO BA'USGH & LOMB OPTICAL COMPANY, (N0. 2,103 ROCHESTER, NEW YORK, A

CORPORATION OF NEW YORK.

igosaaea.

PROJECTION LAIPP$RATUS Patented Apr. as, 1913.

Application filed October 3, 1966. Serial No. 337,169.

To all whom it may concern:

Be it known that we, EDWARD Benson, HENRY BAUSCH, GEORGE HoMMnL, WILLIAM L. PATTERSON, and ERNST SAILER, all of Rochester, in the county of Monroe'and State of New York, have invented. certain I new and useful Improvements in Projection Apparatus; and we do following to he a full, scription of the same, to the accompanying drawings, forming a part of the specification, and to the reference-numerals marked thereon.

Our present invention relates to improvehereby declare the clear, and exact dereference being had ments in apparatus adapted for use in pro-' jecting enlargedima-ges of various objects or view slides onto a suitable screen, for use in connection with lectures or other illustrative purposes, and the object of the invention is to provide such aninstrument of such afconstruction as will'possess ample rigidity to assure the maintenance of the proper optical relations of the different optical elements, and to provide an improved instrument having its-parts so constructed that the difierent elements may. be interchanged one with the other in order that an instrument'may be converted nto various forms in order to adapt the apparatus for universal application to the different methods of projecting images of objects having widely different characteristics, as Well as to enable two or more of the instruments to be built permit. simultaneous projection from both instruments or lanterns such'as is desirable in color work, or to tpermit the lanterns to project their images on the screen insuch a Way that one view gradually dissolves or blends into the next succeeding image.

" To these and other ends"'the* invention consists in certain improvements and com .p

binations of parts, all. as will be hereinafter more fully explained, the novel features being pointed out in the the specificatio!' 1.

Inthe drawings: Figure-1 represents a side-elevation of a projection apparatus conclaims at the-end of structed inaccordance with our invention,

catch devices and .a perspective vie-tr ,one of the slides-or standards,

Fig. 11 represents up in units to and reflector,

. methods of projection,

the upper lantern being arranged for vertical projection and the lower lantern for microscopic projection; Fig. 2 is a side elevat'ion'of theapparatus with the lanterns adapted for simultaneous, successive, or alternate projection, the lamp oi the upper lantern being shown in vertical section. Fig. 3 is a rear view of one of the arc lamps shown in Figs. 1 and 2.

moved. Fig. 5 is a perspective view of one of the bellows-supporting slides removed from the optical bench, the bellows being shown in angular relation with the slide or standard to indicate the relative arrangement of the detachable catch arrangement between theni. Figs. 6 and 6 represent sections through the single and the double the tops of their respective slides and c operating parts. Fig. '7 is of the catch with its housing removed. Figs. 8 and 9 represent Fig. 4: represents a vertical transverse section of the lamp hood, the lamp elements being shown re-' transverse and longitudinal sections, respectively, of portions of the optical bench, and showing the clamping device. Fig. 10 represents a trans verse section on the line 10 10 of Fig. 2.

operating devices porting a superposed lantern. a perspective view of for the vertical attachment and the stage and Fig. iii-shows the lower bellows for the vertical at- Fig. 12 is support for the tachi'nent. Y

- Similar reference numerals" in the several figures indicate similar parts.

the supportingdevices a section showing the cofor posltloning and sup-- As previouslystated, the general object' of the present invention is to provide an ini'- proved" projection apparatus having gits arts or elements so interchangeable asto enable the apparatus to be converted into difierent forms adapted to the difi'erent and to improve the general construction and apparatus as a whole, so that the best re: sults' may be obtained, and the parts handled with facility.

efficiency or the.

The present embodiment of our invention, as shown in the accompanying drawings, comprises generally the base 1 having laterally-extending feet 2 adapted to provide a firm seating of the apparatus upon a table or other suitable support, this base, in the present instance, serving as an optical bench for supporting the elements of the lower lantern, and it preferably embodies a rigid bar or member of a form similar to a lathe bed; that is to say, it has vertically-tapered sides adapted to cooperate with the correspondingly-formed pedestals of the several elements of the lantern, a longitudinally-extending T-slot being provided to receive. the head of the clamping bolts on the several lantern elements.

The lanterns in the embodiment shown employ arc lamps as a source of illumination, although it will be understood that the invention is not limited to any particular type of illuminating device, and the lamp of each lantern is inclosed in a suitable hood 3, the latter being open at the rear, to admit the lamp and having a front plate 4 pref-- erably formed of a casting provided with a forward extension 5 milled or otherwise formed to fit the bed 1 as a pedestal, a clamping bolt or screw 6 having a head serving to cooperate with the T-slot in the bed for detachably holding the hood in the proper adjusted position in a direction longitudinally of the bed. This front plate is also provided with a pair of laterally extending arms 7,'having rails 8 extending rearwardly therefrom and arranged at each side of the lamp hood, and these rails serve as sliding supports for the lamp, the latter comprising, in the present instance, a base 9, having ways 10 at each side thereof adapted to rest on and cooperate with the rails 8 of the lamp hood, these ways serving to support the lamp within the hood and to permit a relatively rough adjustment of its position in a direction of the optical axis of the lantern for focusing and similar purposes, clamping screws 11 being provided for holding the lamp in the desired or adjusted position.

The base of the lamp is provided with a longitudinally-extending, dove-tail groove 12 adapted to receive a correspondingly formed slide 13, a screw 14: being mterposed between the slide with the lamp base and serving as a fine or finishing adjustment for the lamp in the direction of the optical axis of the lantern, after the lamp has been roughly adjusted by the movement of the latter on the supporting rails 8. This slide carries the standard 15, the latter being pivoted on the slide in order that it may be turned in a horizontal plane, a lug l6 projecting radially from the standard or post and cooperating with the end of a screw 17 threaded in the slide and serving to adjust the standard about its vertical axis, and this adjustment serves to' adjust the source of light in a direction laterally of the optical axis. In the upper end of this standard is pivotally mounted the carbon support 18, the latter being pivoted to swing in a vertical plane intersecting the opticalaxis of the lantern, a screw 19 threaded in the slide and cooperating with an arm 20 on the carbon support and serving to eifectthe adjustment of the carbons. in a vertical plane. The vertical adjustment thusprovided, combined with the horizontal swing ing adjustment between thestandardand the lamp-supporting slide, provide universal adjustment that will enable the carbons to be accurately positioned relatively to the optical center of the lantern.

The carbons, in the present form of the lamp, are arranged at right angles, 'one of them, the upper carbon, being arranged horizontally and substantially in alinement with the optical center of the lenses, while theother carbon is arranged at right angles thereto, the carbons being conveniently mounted on carriers 21 and '22, each having a part adapted to cooperate with the corre; sponding adjusting screws 24 and-25,-tl1e latter being providedwith adjusting heads 26 and 27 arranged atthe rear of the'lamp in properly positioning the carbons in-relation to'each other.

The lamp hood 8 is preferably construct and convenlently accessible for manipulat on plates 30 is fitted across the top of the hood at each side of an intermediate V-shaped plate 30, these plates being bent in the vertical plane to form a tortuous passage between the interior and exterior of the hood, so that while the passage of light would be prevented, the heated air and gases in the interior of the hood arising from the, illuminating device, find passages of escape between these plates.

According to the present invention, it is preferable that the lamp and its parts andv the condenser system be mounted and arranged as a complete illuminating unit, and

this is accomplished in the present instance by providing a pair of rails 32 which are secured at their rear ends in the front plate 4 of the lamp hood and are suitably spaced to form supports for the front and rear lens elements 33 and 34, and the intermediate water tank or cooling cell 35, the arrange-- ment of these rails serving to automatically oeaeea center the elements of the condensing system plete unit enables this part of the apparatus to be conveniently attached to or employed as a part of another lantern, so that a single lamp may be interchanged between several lanterns without requiring a re-arrangement thereof.

The condensing system employed in the present embodiment of the invention is of a novel design to withstand the heat from the source of illumination, the frontand rear lens elements 33 and 34 being separated by the cooling cell 35, and as the light rays in pxassing from the rear lens element 34 to the out lens element 33, are parallel or substantially so, ing medium will be presented to the light rays so that the heat will, in a large meas ure, be dissipated, and this is particularly efiicient in cases where living organisms are being used as specimens, and which would otherwise be killed or destroyed by the high temperature.

In the front of the condensing system is arranged the usual extensible bellows 55, which, in the present form of the invention, is detachably supported between a pair of standards56 and 57, each. standard being composed of' a casting having a frame formedatfiits upper portion of a size and shape corresponding with that of the bellows.

5 correspondingly arranged jvided with a be'detachably secured to the frame of the v At their lower edges the frames of the standards 56 and 57 are provided with pairs of forwardly-extending lugs 58 having the upwardly-extending dowel pins or project-ions 59-thereon adapted to enter the apertures 60 formed in the lower edge of the frame 61 j which is secured to one end of the bellows,

the'opposite end of the bellows being prosimilar frame 6:2, adapted to standard 56, the bellows being attached to and detached from the respective standards by a relative vertical tilting movement about .these pins or projections as centers. The

upper edges of the frames of the bellows are secured preferably by spring catches which automatically operate to retain e0. the standards, thecatch on the rear standard the frames fastened position and for the 1 bellows In which may be readily manipulated to release the bellows-so that the latter may be readily interchanged from one part the apparatus to another, afcatch of this kind being emploflye'd-imthe present instance on eachof strun composed of thehousing. 641 suit;

ably- 'securedjtoithe top of the standard adatchGSbeing pivoted to tilt on the fmine horizontally, through the shaft '66 i passing the maximum area of the coolhousing and being operated with a yielding pressure in one direction by a helical spring 67 which preferably surrounds the shaft in the housing. The frame attached to the bellows is provided with a suitable projection which is adapted to enter an aperture in the latch whenever the'frame on the bellows is tilted toward the standard frame, and whenever it is'desirable to detach the bellows, it is merely necessary to lift the latch by the finger sufficiently to release the cotiperating projection.

The forward standard 56 has a pair of dowel pins or projections 7 0 adapted to cooperate with correspondingly-arranged apertures or recesses in the front board which element such as the carries the projecting or a microscope, as

usual projecting lens, shown in F 1, and in erable to employ a double catch, that is to say, one which will serve to fasten the front board as well as the bellows, such embodying a housing 73 having a pin or shaft 74 extending therethrough and serving as a pivotal support for a pair oflatches 75 and 76, the latter extending in opposite directions, andbeing connected to the opposite ends of a helical spring 77 which preferably encircles the shaft, a single spring thus serving to operate both latches. Each of the standards 56 and 57 has a pedestal formed to coiiperate with the bed 1,so that the relative longitudinal position of these standards on the bed may be adjusted, clamping belts or screws 51 and 52 being employed for retaining these standards in relative adjusted positions on the optical bench. A

The lantern thus described is of a type adapted for horizontal projection, and is adapted for single projection, but it is frequently necessary or desirable to employ a set of lanterns so arrangedthat the images may be either simultaneously or successively cast upon the screen by the different lanterns, such, for instance, as in color projection,'or forapparatus as used in connection with illustrated lectures, wherein one picture gradually dissolves and is blended into the next succeeding picture, and in order to enable the lanthis case it is prefa catch tern hereinbefore described to be employed next above it, clamping screws 83 serving to secure the bed from disengagement, these [5 the. bed 82 of the upper lantern to effect vertical adjustment of the latter, and toward the rear of the bed 82 otthe upper lantern is secured a bracket 86 hilVlIlg-dOWIPfUI'HGd arms 87 which are recessed to cooperate 10 with suitable clamping screws 88-which pro- 'ect laterally from opposite sides of the front plate 4 of the lower lantern, these clamping'screws serving. as pivots for the-upper lantern when the latter is adjusted in a vertical plane by manipulation of the screw 85 in order to bring the images projected onto the screen by the different lanterns into co- -incidence, and by tightening the screws 83 and 88 the upper lantern'will be firmly held from displacement? Ofcourse in employing two or more lanterns built up in the way described for successively projecting aseries,

of pictures on a screen, the lantern elements will be duplicates in arrangement.

Sometimes it is necessary, or desirable, to illustrate by aid of a screen, different experiments of physics or chemistry, wherein it is necessary to support the object, or substance under examination, in a horizontal position, and the apparatus is shown adapted for such a use in Fig. 1 of the drawings. In this arrangement of the apparatus, a bracket 90 is secured to the top of the standard 57 in place of the bracket 80 by means of the clamping or securing screws 91, and to the front of this standard is detachably fittedjby meansof the dowel and 'catch connectibirsimilar to that for the bellows, a .box- 92having a mirror 93 therein so arranged'as to divert the horizontal beam of light from'the lam' into a vertical path, and the bracket 90 as a stage 94: secured thereto and fitting over the top of the mirror box and provided with a seat 94 to receive the forward lens element 33" of the condensing system, which is preferably transposed to a position beyond the mirror or reflector when the apparatus is being used with a vertical attachment, the reflector being thus arranged to receive. the parallel rays of light. This bracket 90 has a, lower bellows support 95 fixed thereto by means of the clamping screw 96 passing through a slot '95 in the support, and the bracket extending bench 97 the latter being similar in cross section to the horizontal bench of the lantern as previously described, and

:this bench is secured to the bracket'by a' position between the upper and lower bellows supports- 60 and 61, the upper end of condensing system relatively to the objecsub-stage. The microscope objective in turn is slidingly fitted to a vertically-' ceive the pillar .115, and that portion of the the bellows being secured to astandard' or support 100, which is. adjustably secured to the bench 97 by means of the clamping screw 101, and is a duplicate of the standard 56, the front board 1'02'.carrying the projection lens 103 being attached to this upper support by means of a double catch of the construction hereinbefore described, the projection lens and its front-board being interchangeable with the microscope and its front boar so that either may be employed as desired. The vertical beam of light passing through the bellows and projection lens after leaving the mirror, is returned to a horizontal path and cast upon the screen by means of a mirror or other reflector 104, arranged at a suitable angle above the-projection lens.

In casting highly magnified images of microscopic objects upon the screen, the microscope and its front board 105 are se cured in position by the fastening devices on the forward standard56 in front of the bellows, the optical center of the microscope being arranged in alinei'hent' with the beam of light passing through the bellows, and in order to, obtain the best results for projection purposes, it is preferable to employ a microscope of a special type which will tremely low power objectives, as. well as those of comparatively high power may beemployed without the necessity of subst-ituting a 'difi'erent microscope, and the sub stage of the microscope is so constructed that a suitable condensing lens may be conven iently inserted in the exterior of. the apparatus to bring the li ht rays' into proper form relatively to the o jective. Themi'crd scope is secured to the front board by means of the sub-stage tube 106, the latter being provided with a segmental slot or opening 109 adapted to admit a suitable lensfor properly'focusing the light rays from the tive, a rotatable sleeve 110 being employed as a cover for closing the. opening in the 18 adapted to be attached to adraw, tube 111 which is arranged. to slide in a direction to-- ward and from thestage of the microscope through a guide tube 112 secured to the Ienscarrier. 113, the draw tube 114 for the eye piece bein fitted to slideinto and out ofthe draw tu e of the objectivei The-lens carrier 113 is connected to the stage and base of the microscope by means of a pillar 115, the latter having a sliding connection with the lens carrier, andgprovided with a fine ad'ustment screw 116 for effecting relative a justment between-the pillar-and the lens tube carrier. The bearing 117 is secured to the topof the stage to slidingly repillar. extending therethrough is provided afford anextra long adjustment so that ex- 5.

ice I nocaeea with a rack bar 120 which is arranged to cooperate with a pinion carried by the adjusting head 12-1, manipulation of the latter serving to roughly adjust the position of the lens system of the microscope relatively to the stage thereof, and the rough adjustment thus afforded by the pillar and its adjusting head, together with the adjustment provided by the draw tube, afiord an unusual range of adjustment of the objective relatively to the stage, and this enables the same microscdp'e to'be employed for microscopic projection when both high and low power objectives are employed.

Projection apparatus constructed onthe interchangeable plan as contemplated byour invention enables the elements of the lanterns to be so interchanged as to convert the apparatus into ,difli'erent forms according to the characteristics of the objects to-be projected and to the methods of projection desired to be employed, the improved devices for assembling the elements enabling the same lantern to be arranged for either horizontal or vertical projection; while the novel devices provided enablecone or more lanterns to-be superposed on a lower or supporting lantern with sufiicient firmnessas will in-v sure maintenance of the proper optical're-j lat-ions thereof, and the novel method of combining the lamp or illuminator enables the latter to be readily attached to or detached from the ways or optical bench of the lantern, the detachable arrangement enabling a lamp to be removed from one lantern and mounted-in proper optical relation with the elements of another lantern as may be desired. Moreover, the novel means for supporting the lamp enable the latter to be adjusted to bring the luminous point in the proper position to secure the proper 'focusof the light rays relatively to the condensing system and the object, and as the condensing; system is mounted on a part of the lamp hood, handling of the lamp is facilitated, and maintenance of the proper optical relations is insured.

. We claim as our invention:

1. In-projectio-n apparatus, the combination'with a base having suitable ways thereon and provided with a bolt-head receiving slot extending longitudinally of the base between the ways, of a support for a projection lens and a support for aslide, each having a pedestal fitting the ways on the base and provided with a clamping bolt having a head fitting the slot in the base.

. 2. In a projection apparatus, the combination with a suitable base and projection elementssupported thereon, of an illuminator also supported on the base, embodying a hood, an electric arc lamp arranged therein, a rough adjusting. device for moving both arcing element's of the lamp-longitudinally of the optical axis of the apparatus posed lantern for adjusting and within the hood, and a fine adjusting device for moving both arcing elements across the lamp longitudinally of the optical axis and Within the hood.

3. In projection apparatus, thelcombination with a suitable base and projection elements supported on the base, of an illuminator casing supported on said base and having supporting rails extending substantially in-the direction of the optical airis' of the apparatus, and-a lamp embodying a base having ways thereon adapted to coiiperate with the said rails for supportingthe lam'p, devices for securing the said lampbase in relative adjusted position on said rails, a device for moving the lamp in a horizontal plane on the base, and a device for moving the lamp vertically on the base. Y j

a. In projection apparatus, the combination with a bed having suitable projecting devices arranged thereon, and provided with longitudinal ways,-of an illuminatior arranged in cooperative relation with the projection devices and embodying a hood' or casing depending in rear of thebed and made up of a casting forming. a front plate for the hood and havingta forwardly extending lug thereon formed to fit the ways of the bed, side plates secured tothe front plate, lamp supporting rails secured directly to the front plate, and a lamp adapted to fit within said hood and operating on said rails. I

5. In projection apparatus,th'e combination with a lantern embodying a base, a lamp inclosing hood havinglaterally-extending pivot screws thereon, a slide receiving standard, and a projection lens, of a second superposed lantern embodying a bed having a bracket thereon provided with bearings arranged to cotiperate with the said pivot screws to permit relative pivotal movement of the lantern in a vertical plane, and a bracket supported on the said slide receiving standard having an adjusting screw codperating with the bed of the superthe latter ver tically, guiding arms on sai bracket and'cooperating with said bed, and clamping screws coiiperating with the bed for securingthe latter in adjust-ed position.

6. In projection apparatus, the combination with a suitable bed, an illuminator mounted thereon, and asupporting standard arranged on the bed inalinement with the illuminator, of a microscope supported on said standard and embodying a stage, and the lens elements arranged in coiiperative relation therewith, and a substage comprising a tube arranged in axial alinement with the apparatus and having an opening toadmit the condcnsinglenses, and a closure for said; tube. I .7

' 7 In projection apparatus the combination with a'suitable bed, an illumii nator, and

iac'

condensers, and a sleeve rotatably fitted over said tube for controlling the opening of the latter.

8. In projection apparatus, the combination with a suitable bed, an illuminator, and

a standard arranged on the bed in alinement with the illuminator, of a microscope supported on said standard embodying a stage, a lens carrier adjust-able toward and from the stage, and a lens tube carrying the ob-' jective slidable in the lens carrier for afiording an additional range of adjustment for the objective in the direction of the optical axis of the apparatus.

9. In projection apparatus, the combination wit-h a suitable bed, an illuminator, and a standard arranged on the bed in alinement with the illuminator, of a microscope supported on said standard embodying a stage, a bearing formed on the stage and having an adjusting pinion journaled'therein, a slide fitted in said bearing and having a rack thereon cooperating with the pinion of said bearing, a lens carrier, a bearing on the latter fitting said slide, an adjusting device arranged between the said carrier and slide, and a lens tube carrying the microscope objective guided on the lens carrier for movement of the objective in" line with the optical center of the apparatus.

10. In projection apparatus, the combination with a horizontal bed, an illuminator, a condenser system, and a slide receiving standard arranged in front of the condenser system, of a box detachably connected to said standard in alinement with the condenser system and containing a mirror for deflecting the optical center of the ap aratus to a vertical course, a stage arrange above the said box andm-irror, a bracket secured to the top of said standard and serving to secure the stage thereto, a vertically-extending bed secured to the said bracket bellows supports, one being directly secured to the bracket and the other being guided and sup-' orted on said vertical bed, and a projection ens arranged above the bellows.

11. An illuminator for projection appa ratus comprising a casing adapted to contain a lamp and having an open rectangular top, a set of blades angularly shaped in vertical cross section extending from end to-end-in out of the casing.

said top opening and disposed arallel to each other and spaced apart-to; orm li ht excluding air circulating passages leading 12. An illuminator for projection apparatus comprising a casing adapted to contain a lamp and havingan open top, a set of blades angularly shaped in vertical cross section, extending longitudinally in spaced relation to each other in said top opening and belowthe upper edges thereof, said plates at eachside of the center of the opening being dis osed angularly in opposite pothe first lantern and embodying a bed rail having laterally extending feet at one end adapted to cooperate with the illuminator, a bracket cotiperating with the other end of the rail and detachably mounted on the slide supporting standard and also having later-' ally extending feet, said feet of the rail and bracket being also adapted to cotiperate with a plane surface to support said second lantern when removed from the first lantern.

14. In projection apparatus, the combinationwith a lantern embodying a suitable base, a slide supporting standard, a projection lens and illuminator arranged in 00- operative relation therewith, of a second lantern located above the first mentioned lantern and provided with a centrally disposed bed rail having pivotal connection with the illuminator, a-detachable bracket on the supporting standard of the lower lantern having vertically extending arms for guiding the vertical movement of the bed rail, and means on the bracket cotiperating with the bed rail for adjusting the latter.

15. In projection apparatus, the combination with a lantern embodying a base,'a lamp inclosing hood having laterally extending pivot screws thereon, a slide receiving standard, and a projection lens, of a second lantern adapted to be arranged in superposed relation to the first'mentioned lantern embodying a bed rail having a bracket thereon provided with bearings arg ranged tocoiiperate with the said pivot screws to support one end of the bed and permit relative pivotal movement of the lantern,

a bracket on the slide supporting standard of the lower lantern guiding the other end of said bedandmeans for adjusting the latter oh the last mentioned bracket,

16. In projection-apparatus, the combination witli a" lantern-embodying a base, a slide supporting standard thereon, and a projection lens and illuminator arranged in coiiperative relation therewith, of a second lantern located above. the first-mentioned lantern and having a-bed rail, a detachable bracket supported on the slide supporting standard of the lower lantern and having removed from their normal position on the vertically extending arms embracing the lower lantern. rail and guiding it vertically, a centrally EDYVARD BAUSGH.

- disposed screw on said bracketcooperating HENRY BAUSCH.

5 with said rail for adjusting the latter verti- GEORGE HOMMEL.

. cally, and screwscarried by the said arms WILLIAM L. PATTERSON.

of the bracket and cooperating with the ERNST SAILER. sides of the rail for securing the latter in Witnesses: adjusted position and also securing the W. G. \VOODWORTH,

10 bracket to the bed rail when said parts are JOSEPH HoMMnL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of. Eatents,

' Washington, D. G.

dmmql A 

